Analys the webpage response time related problems - Using yslow add-on

YSlow

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
http://yslow.org is the official open source website.

This add-on requires the following add-ons to work properly:

Firebug
Web Development

Salesforce Code Scanner - Analyse source code

The Force.com Security Source Scanner is a cloud based source code analysis tool built directly into our Force.com offering. Salesforce.com has made it available to all of its developers, for free, as a high value addition, which will help to enable our community to build trusted applications.

Code is scanned on a first come, first serve basis. Depending on the size and complexity of the code and the queue size, speed of results may vary.

You can run the code scanner through this URL

http://security.force.com/security/tools/forcecom/scanner


In this URL you can submit your dev org username , after submit the URL the code analysis result will send to our mail.

JAVASCRIPT - MULTIPLE CHECKBOX SELECTION WITH SHIFT KEY PRESS

MULTIPLE CHECKBOX SELECTION WITH SHIFT KEY PRESS

<script>
function checkboxClick(){
       
$(':checkbox').click(function(e){              
if (e.shiftKey){
   // Entered - When the user clicks the checkbox with shift key
shiftCheckBox = $(this).attr('id');
            // salesforce id's having multiple ':' like 'dbpage:dbform:results:j_id173:5:selectStarredCalls'. So we need to split the unique number of the Id
            // If HTML checkbox you dont need to  split the id
var shiftCheckBoxID = shiftCheckBox.split(':');
var shiftCheckBoxIDPos = shiftCheckBoxID[shiftCheckBoxID.length-2];
shiftCheckBoxIDPos = parseInt(shiftCheckBoxIDPos);                
var checkBoxClickID = checkBoxClick.split(':');
var checkBoxClickIDPos = checkBoxClickID[checkBoxClickID.length-2];
checkBoxClickIDPos = parseInt(checkBoxClickIDPos);
// checkboxIdsList - having id's of all checkboxes, When the checkboxes are created, at the time assign all the checkbox id's in this list
var checkboxIdsArray = checkboxIdsList;

if(shiftCheckBoxIDPos > checkBoxClickIDPos){
for(var i=0; i < checkboxIdsArray.length; i++){                          
var innerId = checkboxIdsArray[i];
var splitedInnerId= innerId.split(':');
var splitedInnerIdPos = splitedInnerId[splitedInnerId.length-2];
splitedInnerIdPos = parseInt(splitedInnerIdPos);
if(splitedInnerIdPos > checkBoxClickIDPos && splitedInnerIdPos < shiftCheckBoxIDPos ){
var inBetweenCheckBoxId = checkboxIdsArray[splitedInnerIdPos];
var test = inBetweenCheckBoxId ;                              
document.getElementById(test).checked = true;
  }
}
}else{
for(var j=0; j < checkboxIdsArray.length; j++){
 
var innerId1 = checkboxIdsArray[j];
var splitedInnerId1= innerId1.split(':');
var splitedInnerIdPos1 = splitedInnerId1[splitedInnerId1.length-2];
splitedInnerIdPos1 = parseInt(splitedInnerIdPos1);
if(splitedInnerIdPos1 > shiftCheckBoxIDPos && splitedInnerIdPos1 < checkBoxClickIDPos ){
var inBetweenCheckBoxId1 = checkboxIdsArray[splitedInnerIdPos1];
var test1 = inBetweenCheckBoxId1 ;
document.getElementById(test1).checked = true;
  }
}
}
}else{
            // Id of last clicked checkbox id (Without shift key press )
checkBoxClick = $(this).attr('id');
}
});
}
</script>

JAVASCRIPT FOR GET THE BROWSER NAME & CLICK EVENT

JAVASCRIPT CODE FOR GET THE BROWSER NAME 

window.onload=function(){
 
var nAgt = navigator.userAgent;
var browserName  = navigator.appName;
var nameOffset,verOffset;

if((verOffset=nAgt.indexOf("Opera"))!=-1) {
browserName = "Opera";
}else if ((verOffset=nAgt.indexOf("MSIE"))!=-1) {
browserName = "Microsoft Internet Explorer";
}else if ((verOffset=nAgt.indexOf("Chrome"))!=-1) {
browserName = "Chrome";
}else  if ((verOffset=nAgt.indexOf("Safari"))!=-1) {
browserName = "Safari";
}else if ((verOffset=nAgt.indexOf("Firefox"))!=-1) {
browserName = "Firefox";
}else if ( (nameOffset=nAgt.lastIndexOf(' ')+1) < (verOffset=nAgt.lastIndexOf('/'))) {
browserName = nAgt.substring(nameOffset,verOffset);
if (browserName.toLowerCase()==browserName.toUpperCase()) {
browserName = navigator.appName;
}
}
document.write('::browserName::'+browserName);
}

CLICK EVENT THROUGH JAVASCRIPT 

// In Safari - (Windows OS) javascript click() function doesn't work. So alternatively we can do the click() function like this

                var evObj = document.createEvent('MouseEvents');
evObj.initMouseEvent('click', true, true, window);
document.getElementById('clickedElementId').dispatchEvent(evObj);
Example:

if(browserName == 'Safari'){
var evObj = document.createEvent('MouseEvents');
evObj.initMouseEvent('click', true, true, window);
document.getElementById('clickedElementId').dispatchEvent(evObj);
}else{
   // This code working in all other browsers
document.getElementById('clickedElementId').click();
}

Javascript Character Codes (Key Codes)

WORKING WITH JAVASCRIPT KEY EVENT

 We can get the keycode in key events like onkeyup, onkeydown, onClick, onKeypress.....

window.onkeyup = function (event) {

if(event.keyCode == 38 || event.which == 38){

// here you can put your up arrow functionality code

}else if(event.keyCode == 40 || event.which == 40){      

// here you can put your down arrow functionality code

}   

if (event.keyCode == 27 || event.which == 27) {

// here you can put your esc key functionality code

like window.close();

}

 

}

Key Code backspace 8 tab 9 enter 13 shift 16 ctrl 17 alt 18 pause/break 19 caps lock 20 escape 27 page up 33 page down 34 end 35 home 36 left arrow 37 up arrow 38 right arrow 39 down arrow 40 insert 45 delete 46 0 48 1 49 2 50 3 51 4 52 5 53 6 54 7 55 8 56 9 57 a 65 b 66 c 67 d 68

Key Code e 69 f 70 g 71 h 72 i 73 j 74 k 75 l 76 m 77 n 78 o 79 p 80 q 81 r 82 s 83 t 84 u 85 v 86 w 87 x 88 y 89 z 90 left window key 91 right window key 92 select key 93 numpad 0 96 numpad 1 97 numpad 2 98 numpad 3 99 numpad 4 100 numpad 5 101 numpad 6 102 numpad 7 103

Key Code numpad 8 104 numpad 9 105 multiply 106 add 107 subtract 109 decimal point 110 divide 111 f1 112 f2 113 f3 114 f4 115 f5 116 f6 117 f7 118 f8 119 f9 120 f10 121 f11 122 f12 123 num lock 144 scroll lock 145 semi-colon 186 equal sign 187 comma 188 dash 189 period 190 forward slash 191 grave accent 192 open bracket 219 back slash 220 close braket 221 single quote 222